Hello,
My system config:
OS: Ubuntu 20.04.3 LTS
OS Type: 64-bit
RAM: 3.8 GB
Processor: Intel Core i5-2450M CPU @2.50GHz x4
UHD version: 3.15.0.0
GNU Radio version: 3.8.1.0
SDR Device: Ettus USRP N320
My current goal: Build a FM receiver
My Antenna Techincal Information is shown below:
Manufacturer RF Solutions
PART ANT-8WHIP3H-SMA
TYPE 90DEG HINGED WHIP
FREQUENCY 868MHz
CONNECTOR SMA
FORM HINGED WHIP
DB GAIN +3dBi
OP TEMPERATURE -40 to +70oC
1.
I am trying to build a FM receiver on Ettus USRP N320 using GNU radio I followed the FM receiver Tutorial from gnuradio wiki (https://wiki.gnuradio.org/index.php/File:USRP_FM_fg.png),
I could run the fm receiver (grc program)without errors and could also tune the frequencies and other settings, but I could only hear the noisy sound not the FM channel music whatever settings I use. Moreover, I see ‚UaUaUaUaUaUaUa….‘ in the output console
when the FM received signal is strong!
What could be the reason I could not hear FM channel? Is there anyone who tested FM receiver on Ettus USRP N320? Is there any example flowgraphs available which I could
download and explore the device’s features?
2.
If the antenna I am using is the problem, Why am I able to listen to FM channels successfully using the same antenna connected with RTL-SDR Dongle operated via SDRSharp?
3.
I could not find grc blocks for OSMOSDR or RTLSDR, where and how can I add those desired grc blocks to my existing GNUradio Companion? Should I only deinstall and
build gnuradio from source for this purpose? Or is there any easy way possible?
Looking forward to your kind response
J
Mit freundlichen Grüßen / Best regards
i.A. Thangaraj
Systemtechnik und Dienste/EDV
Projekt Team- LoRa
komro GmbH
Am Innreit 2
DE-83022 Rosenheim
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/ www.komro.net
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